From 39a85b64a03ed7b8b08e15fb3bf7760c2a6e81ba Mon Sep 17 00:00:00 2001
From: Devine Lu Linvega <aliceffekt@gmail.com>
Date: Wed, 24 May 2023 09:46:15 -0700
Subject: [PATCH] base64 encoder

---
 cli/base64/b64enc.tal | 70 +++++++++++++++++++++++++++++++++++++++++++
 cli/base64/build.sh   | 25 ++++++++++++++++
 cli/base64/test.txt   |  1 +
 3 files changed, 96 insertions(+)
 create mode 100644 cli/base64/b64enc.tal
 create mode 100755 cli/base64/build.sh
 create mode 100644 cli/base64/test.txt

diff --git a/cli/base64/b64enc.tal b/cli/base64/b64enc.tal
new file mode 100644
index 0000000..c870904
--- /dev/null
+++ b/cli/base64/b64enc.tal
@@ -0,0 +1,70 @@
+( uxncli b64enc.rom file.bin )
+
+|10 @Console &vector $2 &read $1 &pad $5 &write $1 &error $1
+|a0 @File &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2
+
+|0000
+
+	@src $40
+	@queue $1
+
+|0100 ( -> )
+
+	;await-src .Console/vector DEO2
+
+BRK
+
+@await-src ( -> )
+
+	.Console/read DEI .src skey ?on-ready
+
+BRK
+
+@on-ready ( -> )
+
+	;src .File/name DEO2
+	#0001 .File/length DEO2
+	;&buf
+	&stream
+		DUP2 .File/read DEO2
+		.File/success DEI2 #0000 EQU2 ?&eof
+		LDAk append
+		!&stream &eof
+	POP2
+	#0a18 DEO
+	#010f DEO
+
+BRK
+	&buf $1
+
+@append ( c -- )
+
+	,&chr STR
+	#0800
+	&l
+		[ LIT &chr $1 ] OVR #07 SWP SUB SFT #01 AND
+		[ LIT &inc $1 ] INCk #06 DIVk MUL SUB ,&inc STR
+		( bit id -- )
+		SWP .queue LDZ ORA #10 SFT .queue STZ
+		( output )
+		#05 NEQ ?&no-cap
+			#00 .queue LDZ #01 SFT ;MIME ADD2 LDA #18 DEO
+			#00 .queue STZ
+			&no-cap
+		INC GTHk ?&l
+	POP2
+
+JMP2r
+
+@MIME [
+	"ABCDEFGHIJKLMNOP
+	"QRSTUVWXYZabcdef
+	"ghijklmnopqrstuv
+	"wxyz0123456789+/ ]
+
+@skey ( key buf -- proc ) OVR #21 LTH ?&eval #00 SWP sput #00 JMP2r &eval POP2 #01 JMP2r
+@scap ( str* -- end* ) LDAk #00 NEQ [ JMP JMP2r ] &w INC2 LDAk ?&w JMP2r
+@sput ( chr str* -- ) scap INC2k #00 ROT ROT STA STA JMP2r
+@pstr ( str* -- ) &w LDAk #18 DEO INC2 LDAk ?&w POP2 JMP2r
+@phex ( short* -- ) SWP phex/b &b DUP #04 SFT phex/c &c #0f AND DUP #09 GTH #27 MUL ADD #30 ADD #18 DEO JMP2r
+
diff --git a/cli/base64/build.sh b/cli/base64/build.sh
new file mode 100755
index 0000000..aae77d7
--- /dev/null
+++ b/cli/base64/build.sh
@@ -0,0 +1,25 @@
+#!/bin/sh -e
+
+ID="b64enc"
+ASM="uxncli $HOME/roms/drifblim.rom"
+EMU="uxncli"
+LIN="uxncli $HOME/roms/uxnlin.rom"
+SRC="${ID}.tal"
+DST="${ID}.rom"
+CPY="$HOME/roms"
+ARG="test.txt"
+
+if [[ "$*" == *"--lint"* ]]
+then
+	$LIN $SRC
+fi
+
+$ASM $SRC $DST
+
+if [[ "$*" == *"--save"* ]]
+then
+	cp $DST $CPY
+fi
+
+$EMU $DST $ARG
+
diff --git a/cli/base64/test.txt b/cli/base64/test.txt
new file mode 100644
index 0000000..a12a526
--- /dev/null
+++ b/cli/base64/test.txt
@@ -0,0 +1 @@
+Many hands make light work.
\ No newline at end of file